OSX Cyrus POP 8.8.8.8 Cyrus POP3 v2.3.8-OS X Server 10.5: 9A562 server ready <1999107648.1324502155@8.8.8.8> CMU Cyrus POP foo Cyrus POP3 v2.3 foo Cyrus POP3 v2.3.14 server ready <13087751828270990591.1301068892@foo> IBM Lotus Notes/Domino Lotus Notes POP3 server version X2.0 ready on foo/bar. IBM Lotus Notes/Domino - Release variant Lotus Notes POP3 server version Release 8.5.1FP5 ready on foo/US. Qpopper with Sphera mods Qpopper (version 4.0.3, modified by Sphera Technologies) at domain starting. <xxx@domain> Qpopper with MySQL auth module Qpopper (version 4.0.3-mysql-0.13) at domain starting. <xxx@domain> Qpopper missing version info Qpopper (version 4.0.16) at foo.example.com QPOP (version 2.53) at domain starting. <xxx@domain> Qpopper (version 4.0.3) at domain starting. <xxx@domain> Qpopper with missing version info QPOP (version ?) at domain starting. <xxx@domain> Microsoft Exchange Server 2003 Microsoft Exchange Server 2003 POP3 server version 6.5.6944.0 (host) ready. Microsoft Exchange Server 2000 Microsoft Exchange 2000 POP3 server version 6.0.6603.0 (host) ready. Microsoft Exchange Server Microsoft Exchange POP3 server version 5.5.2654.50 ready Microsoft POP3 Services on Windows 2003 Microsoft Windows POP3 Service Version 1.0 <xxx@host> ready. Microsoft Exchange Server 2007 Microsoft Exchange Server 2007 POP3 service ready Microsoft Exchange Server, generic The Microsoft Exchange POP3 service is ready. Dovecot Secure POP Server Dovecot ready. Dovecot DA ready. Dovecot ready. <fea.13865d.5f06b0a4.DuIvzQI4DAGR9MurahIGJw==@foo.bar.baz> Dovecot Secure POP Server - Ubuntu variant Dovecot (Ubuntu) ready. Dovecot Secure POP Server - Debian variant Dovecot (Debian) ready. Dovecot Secure POP Server - Raspbian variant Dovecot (Raspbian) ready. Zimbra Collaboration POP foo.bar Zimbra POP3 server ready Zimbra Collaboration POP with version foo.bar Zimbra 7.0.0_GA_3079 POP3 server ready Generic masked POP3 server POP3 server ready <58c29ae4-7316-429e-8109-060444ab1a28@foo.example.com> <84427.1298535083@foo.example.com> Apple Open Directory ApplePasswordServer 10.6.0.0 password server at 10.2.90.228 ready. ApplePasswordServer 10.5.0.1 password serv TCP/IP Services for OpenVMS POP server TCPIP POP server V5.4J-15A, OpenVMS V7.3-2 Alpha at example.com, up since 2015-02-12 08:44:53 20400434.2 Courier MTA POP Hello there. CMailServer CMailServer 5.0.0 POP3 Service Ready POP3 Bigfoot server POP3 Bigfoot v1.0 server ready CCProxy POP3 server CCProxy 8.0 POP3 Service Ready CCProxy 2010 POP3 Service Ready CCProxy 6.4.2 POP3 Service Ready WinWebmail POP3 POP3 on WinWebMail [1.1.1.1] ready. BlackJumboDog BlackJumboDog (Version 5.7.5.0) ready MailEnable POP3 Welcome to MailEnable POP3 Server